<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Title</title>
</head>
<body>
<div id="app">
	{{ message }} <br/>
	<button @click="count++">{{count}}</button>
</div>
<div>
	<button @click="count++">{{count}}</button>
</div>

<!-- CND引入在线的vue-->
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
<script>
	const {createApp, ref} = Vue
	/* 创建vue的应用实例 */
	createApp({
		setup() {
			const message = ref('Hello vue!')
			const count = ref(0)
			return {
				message, count
			}
		}
	}).mount('#app') //id为app的div被vue接管
</script>
</body>
</html>